nabholz



Jam 8., 1952 'Filed July I 1949 2 SHEETS-SHEET l wiw , Y zul, w

Patented Jan. 8, 1952 i UNITED PATENT. ortica e..Febure-..Corporation,CedarR.apids,..Iowa, a.

Application anyv A1. 1949,5*seiai1Nd-f102;587'

.Devices of thekind, `here consideredcserve .not K only ias a filing.`means for"ling:cards-:and'fthe like, butare used .moreparticularlyas.afportable platform 'forialphabeticallyLor numericallyclassi; tying.. ledger; sheets-...index tcards, .-account' sheets andthe like whichrmust. be frequently.. reerred to v;.anrl :perhaps "pulledtand Areplaced frequently duringthe ebusinessxday. f'

It is' very desirable that -the operatoribe iable to'moveA andmanipulatefthe :cards .or'other records, eitherindividually vvorsas alblock, with' .the greatest possible ease. f These `devices commonlyemploy a base or platform upon which a pair of ycompression plates forconfining the `ledger l"sheets lare movably mounted. Thesecompressorplates may. be. moved toward and away from eachothenbyameanseof nut membersengaged to Atherespective plates aryl.having threaded engagement on a shaft having oppositely disposedthreads. g

VSuch devices of .the prior art have amarked disadvantage that'unlessthe compressor'plates are .disengaged from Ythe .nutsj-they move towardand.A away from each other simultaneously/'It may be very necessary anddesirable to move one compressor plate without moving the other. Thiscannot be done without disengaging one or both nuts from the screwthread one way or another. It is an important object of my invention toavoid this disadvantage of other devices of the prior art and to providemeans whereby both compressor plates are engaged to their respectivedriving screws at all times, but in which one blade may be moved ordriven without driving the other.

Another object of my invention is to provide separate screws for each ofthe compressor blades so that one may be replaced without necessitatingreplacement of the other.

Other and further features and objects of the invention will be moreapparent to those skilled in the art upon a consideration of theaccompanying drawings and following specifications, wherein is discloseda single exemplary embodiment of the invention, with the understanding,however, that such changes may be made therein as fall within the scopeof the appended claims, without departing from the spirit of theinvention.

In said drawings: y

Figure 1 is a view in perspective of a tray binder constructed accordingto one embodiment of my invention. The operating crank is shownsuspended in front of the tray in full lines and illus- ...4 claims.(circa-'16) trated in dotted lines. on thesba'ck ofthe compres.- sorAplate where it maybe. stowed whenl not inuse. Figure 2 4:is a'view inlongitudinal section .of the base "illustrating .the g drivingmechanism. The iront portion of the vievris.taken` alongraplane passingthroughthe, screw'zdrivingfthe front;com pressorxplate,while.;therearrportion or.l right hand portionV of fthegure. illustratesthe.device .in section .as it :appears .n.;a; plane'v taken through thescrew/driving the rearzcompressor plate. Y Figure isasectionalfviewfthe'.drivinginech` anism illustrating more particularly the: relation ofVthe gears @and clutch device, for idriving .the respective screws,- andf -Figure LIrisa view incenlarged detailed sectional view of this.drivingA `mechanism andits housing.

Referring nowY to the drawings: v In-v a .preferred embodiment of.: my`inventionj' employ 1a hollow ibase VIllkhaving rounded corners andslotted at .i Itofpermittheears I2 and I3 Of traveling: nuts I4 *and.-I6 to project `upwardly throughthe base.

I preferably employ a rectangularrrail Ilto surround the-.supportingarea'formed'by the platformlc I of the base I0.

, In :the structurehere shown, a follower' block nut gt4 Iand .fthe@compressor plate AI 9 :isy hingedly mounted on the upper edge of thisfollower block I3. The holding bracket 2I may be engaged in any one ofseveral positions to the ear 20 of follower block I8. y

The ears I3 of rear traveling'nut I6 have upwardly projecting brackets22 on which the rear compression plate 23 is pivotally engaged.

In order to drive the nuts I4 and I6, I provide two screws 3l and 32(see Figs. 3 and 4). The left hand screw 3| is threadedly engaged in thenut I4 and may be rotated by the squared end 35| or by means of thesmall gear 33 which is mounted on the threaded shaft. The pitch of thisscrew 3| is usually three times that of the screw 32.

The screw 32 has threaded engagement in the rear follower nut I6 and maybe rotated by means of the squared end 322 or by the spur gear 34.

In order, then, to move the front follower block and compressor plate,it is necessary only to rotate the drive spline 3II by means of thedrive shaft or crank 36 which is rotated by handle 31.

Normally, rotation of the drive spline 3II will l produce 'rotation ofthe gear 34 and shaft 32A through the agency of the spur gear 33, butthe stub shaft 322 may be movedrearwardly so as to move 'the spur gear34 out of register with the spur gear This'is accomplished by placingthe drive shaft 36 over the drive spline 322 and 32 may be rotatedeither by splined drive portions y 3H or 322, but if it is desired toldrive only the rear nut I6 without moving the front drive nut I4, thesplined shaft 322 is engaged by the crank 36 and pushed inwardly so thatthe splined portion slides into the shaft 32 and this disengages thespur gear 34 from spur gear 33. In this man-y ner the compressor platemay be moved anywhere on the platform I 0i. On release of the pressureon the driving spline 322, the spring 39 will cause the movable spurgear 34 to again engage the spur gear 33 so that drive of both shaftsmay be produced as before.

Although I have described a specific embodiment of my invention, it isapparent that modications thereof may be made by those skilled in theart. Such modifications may be made without departing from the spiritand scope of my invention as set forth in the appended claims.

I claim as my invention:

1. In a tray binder, a base, a pair of feed screws mounted for rotationin the base and extending in parallel relation from front to rear of thebase, a compressor plateand follower block threadedly engaged on onefeed screw and another compressor plate andY follower block havingthreaded engagement on the other feed screw, gear means disengaging saidgears, said means including a drive handle engageable to one of saidfeed screws for'rotation thereof and movable longitudinally relativethereto.

3. In artray binder, a base, a pair of feed screws mounted'for rotationin the base and extending in parallel relation from front to rear of thebase, a compressor plate and follower block threadedly engaged on onevfeed screw andV another coma pressor plate and 'follower block havingthreaded engagement on the other feed screw, gear means for driving onefeed screw from the other feed screw, and means including an operatinghandle for optionally and slidably shifting said gear means out ofengagement, the said operating handle being adapted for rotating one ofsaid feed screws.

4. Inria tray binder, a base member, a front compressor plate and a rearcompressor plate mounted on the base member for longitudinal relativemovement, a pair of longitudinally extending 1feed screws, the rst ofsaid feed screws being threadedly engaged to the front compressor Vplateand the second feed screw being threadedly for sliding disengagementfrom the other of said spur gears, and an operating handle engageablewiththe last mentioned feed screw and rmovable for driving one feedscrew from the other, and

threadedly engaged therewith, gears on said feed screws, and means forselectively engaging or longitudinally relative thereto for optionallydisengaging the movable spur gear from the other spur gear and forselectively ,driving the last mentioned Vfeed screw with or without thespur gears in engagement.

ORVIE E. NABHOLZ.

REFERENCES CITED The following references are of record in the le ofthis patent:

UNITED STATES PATENTS Number Name Date 1,574,526 Yeiser et al Feb. 23,1926 1,736,926 Le Febure Nov. 26, 1929 1,764,264 Jones et al June 17,1930 2,095,053 Buchan Oct. 5, 1937

